Solar flares on April 20, 2025
The most powerful solar flare in 24 hours
M1.0 (strong) flare - April 20 at 6:11 PM
Solar activity index
Value as of the end of the day on April 20, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 19, 2025 to April 20, 2025
Time zone — UTC+06 (Omsk)
List of solar flares for April 20, 2025
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.3 | 23:02 | 23:18 | 23:34 | 4063 |
| C1.7 | 22:23 | 22:28 | 22:33 | 4064 |
| M1.0 | 17:37 | 18:11 | 18:59 | 4068 |
| C2.2 | 13:50 | 13:57 | 14:06 | 4068 |
| C2.0 | 12:20 | 12:23 | 12:26 | 4065 |